Jari Aalto wrote:
>
> I have seen following construct to be used in shell-context
> (makefiles, sh-scripts, Perl):
>
> `cmd` [1]
>
> However, the POSIX standard and SUSv[23] declares alternative way of
> accomplishing the same with in *sh context:
>
> $(cmd) [2]
The only problem I see with $() is that older /bin/sh (SunOS) does not
support $(), but it does support ``.
When I make a /bin/sh, I want it able to be run on a /bin/sh, even if
that /bin/sh is on SunOS. I avoid $() and I do not consider `` a bug at
all. I use ``. If I need to nest, then I will use $() and usually mark
it as /bin/bash. Not a hard and fast rule, but as a guideline.
A line in a Makefile is simply a /bin/sh one-liner. Same rules apply as
for /bin/sh.
Perl suports qx() which I do tend to use over ``.
If I were to get a wishlst bug, I would mark it wontfix and leave it as
such. Even with a patch.
--
John H. Robinson, IV jaqque@debian.org
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